Uno Carbine, better known as Uno Carb, is a character in Grand Theft Auto 2 and is the leader of The Zaibatsu Corporation in the Industrial District of Anywhere City (although his head looks identical to those of Trey Welsh and Red Valdez). Carb is one of Claude Speed's last bosses in the game, having Claude earn his trust by killing members of the Hare Krishna. Carb then has him neutralise some rivals, steal reactor fuel from the Russian Mafia, steal back some Zaibatsu artificial intelligence units from the Russians, starts a gang war between the Russians and the Krishna, collect some police/army vehicles and then steal a second tank. Claude, however, manages to anger Carb, Jerkov (leader of the Russian Mafia) and Sunbeam (leader of the Hare Krishna), but manages to kill the three of them.

Carbine has a heroin addiciton, which he pays for by selling cutting edge weaponry from Zaibatsu. He has a relationship with Ulrika Afrique, but enjoys sleeping with high-class call girls. He is also known as "One Gun", "The Man With No Name" and "Santa Claus". He drives a Z-Type during his mission and carries a Rocket Launcher, making him the hardest gang leader to kill in the game.